Transmission mechanism.



G. J. PAULSON. TRANSMISSION MECHANISM. APPLIOATION FILED NOV. 25,-1912.

Patented July 21, 191% 2 SHEETSSHBET 1.

LIQQAQQI m C U Q I. r k I M I W T m T N I T .I. I. w T HI II I I IIIIIIIIIIIIMI WI II u m I I I I I I I I I I I I I I I I I I I I I I l I I I I I I l I I I I l I I Q Wkarlas cliZ u/Emie.

G. J. PAULSON. TRANSMISSION MECHANISM. APPLICATION FILED NOV.25,1912.

Patented July 21, 19M.

.zzaz figzzzeaz a flz his (vi/fibrils W I) M,

51% gara es c3: Wall 5 $015,

' section on the line 33 of Fig. 2. Fig. 4 is sratrns PATENT orrron.

CHARLE$ J. PAULSON, OF NEW YORK, N.

Y., ASSIGNOR ro ALBERT J. nomnaoxnn, or

new YORK, n. Y1

reansmssiou lvrrionamsm.

be connected with the driving shaft to drive I at several forward speeds, or directly connected, or connected for reverse; and which construction permits the direct shifting from any one of the lower speeds, or from the reverse, to the high speed direct connection. I

In theac'companying drawings, showing one embodiment of my invention, Figure 1 is a vertical section. Fig. 2 is a similar view with certain parts omitted, with the parts shifted to different positions. Fig. 3 is a a section on the line 44 of Fig. 1. Fig. 5 is a sectionon the line 5-5 of Fig. 1. And Fig. 6 is asection on the line 6 6 of Fig. 2.

A casing 7 is shown. A driving shaft 8 is mounted to rotate in suitable bearings, as 9 and 10 in the casing, which shaft has an end engaging portion 11 formed with flat sides, preferably square as indicated in Fig. 6. On this shaft 8 are loosely mounted a primary reversing gear 12 and also three primary gears, 13, 14 and 15, of graduated sizes,

secured together, fast to the gear 12, being shown as four integral gears loose on the shaft 8. v

In alinement with the shaft 8 is a driven shaft 16 rotatable in a suitable bearing, as 17 This driven shaft has a squared or polygonal engaging portion 18 like that of the driving shaft 8 arranged to fit in a similar shaped enlargement or socket 19 in the bore of a gear member 20, the latter being loose to rotate on the shaft, as indicated in Fig. 2, but connected with the shaft by this squared portion 18 when the gear is shifted to the position indicated in Fig. 2, by means hereinafter set forth. The shaft 16 has an evtension 21 projecting into a cylindrical bore 22 in the extension 11 of the main shaft 8, that serves to guide and steady the driven shaft 16. v

A third or counter shaft 23 is mounted to Specification of Letters Patent.

Application filed November, 25, 1912. Serial No. 733,243.

Patented July 21, 1914.

rotate in suitable bearings in the casing, parallel with the said two shafts.

I provide clutching means for simultaneby ously engaging the driving shaft 8 with-it's prlmary gear 12-15 and disengaging thedriven shaft 16 from its final gear 20, or for engaging the latter two while disengaging I the former two; said clutching means comprising the olygonal end sections 11 and 18 of said she ts; a corresponding female engagement formed in a sleeve 35 slidable on said members and in a bearing 10 formed on the frame 7, and a polygonal (square) head 37{ on the sleeve 35and a corresponding socket, 38, in the primary gear 12-15.

The sleeve 35 and final gear '20 are distanced and made. simultaneously movable by attachment, respectively, to arms 45 and 46 extending from a movable carriage 44 enveloping the countershaft 23 and adapted to be engaged and moved thereby during part of its anterior movement by means of a pawl 49 pivoted on the carriage 44 by a pin 50 and upheld. by an engaging spring 53, so that its head may,'at proper times, engage a shoulder, 51, formed in the c-ountershaft by grooving it, the opposite side of the groove being beveled, as illustrated, so that a posterior movement of said shaft will lift and disengage the pawl.

To move the carriage 45 and simultaneously engage or disengage the driving shaft 8 with'or from its primary gear and the driven shaft with or from its final gear, I provide a lever 47 'fulcrumed on the casing 7, connected with the carriage 44by a slot enveloping the pin 50. and having an exterior operating link 48.

My intermediate gear comprises a reversing pinion 32 revolubly mounted on the case 7 and in mesh with the primary reversing gear 12; and, enveloping the countershaft 23, a reversing gear 31 in mesh with the reversing pinion, and a graduated series of speed reducing gears 24, 25 and 26in mesh with the corresponding primary'gears 13, 14 and 15; all the above gears being loosely mounted on the countershaft, and, revoluble with it, a transmission gear 40, in mesh with the final gear 20 and illustrated as revolubly mounted in a bearing 41 in the case 7 :and

engaged with thecountershaft 23 by male andfemale engaging members respectively,

42 and 43, the former a polygonal socket in r v the gearafidy-the latter-a corresponding] prismatic section of theshaft.

".I .provideimeansto engageanddisengage lthe "'fq mter'sha ft' .23 with and from i the '":re-'

" versin and-reduction gears 31, .24, .25 and "26,in ependentlyrand-successivelyby a con-' tinuous (or interrupted) reciprocation of said shaft 'said means compmsmgapolygonal engagmg hub on the shaftand corre-- sponding sockets 33,27, 28 and 29 in the sev-j lz-eral .gears 31, 24,. 25,26, and chambers 52 I between adjacent sockets-and anteriorto'the socket 29 inthe gear '26; said chambers 52' larg ments of the holes in said gearstbeing larger than the .hub 30 so that it can turnfree yin them and illustrated as en-f In order to produce a more compact mech: fanism and also to avoid a multipllcity 10f .fixed bearings .for the intermediate gear train and the inevitable binding. thereby'oeeasioned, I provide bearings 31?, 26 inthe 1 gears. 31 andl26, respectively, b whichxtheyaremounted Jon. the .countersha t and onsaid:

' gears Iifloat .the interior gears 24-andl25zby 1 '4 ecause dlsengaged from the driving shaft. N .Fig. 1 shows my reverse drive; the carmeans of float bearings formed between, voverlappin 26?, forme on'the respective wheels 3l, 24,

.'Fig..2 showsm "direct drive; the carriage 44, sleeve and nal gear. 20 in anterior position the. latter disengaged fromthe driven shaft lfi'and theprimary gear 1215 from i 'the sleeve; which permanently engages the. driving. shaft '8 by means of its polygonal section 11, .and when in; this osition also. engagesthe like section 18 o the driven shaft '16, thus directly coupling the said ,iishafts; :During direct drive the transmiss'ion gear is revolved becausein permagientsmosh with the final gears20 and'revolves j gthe countershaft 23,.the engaging hub 30of which is located in one or other of the i'cham- 52 (here 'iillu'strated "as in the anterior operand disengaged from the intermediate fiears, which rest, as also do the primary gear riage 44, sleeve 35, and final gear 20 in anterior position; the-sleeve 35 (which permanently engages thepolygonal section of the driving shaft 8), by its head 37 engaged with the socket 38 in the primary gear 12-15 and engaging the latter with the driving shaft; the final gear 20, by means o'f'its socket 19 ,and the'head 18 of the driven shaft 16 engaging the Platter and directly coupling the rlvlng and driven shafts;the countersha'ft v 23in posterior position, engaged with its revers'ing gear 31 becauseathe'hub 30 ofsaicl r shaft is in the socket33 of saidge'ar (and by the reversing pinion 32 in train with the primary reversing gear 12), and perma-- nently engaged with the transmission gear 40..by means of their respective polygonal end 43 and socket42.

gear and t gear and couples the rldriving -and id'riven shafts direct. "Practicalviexperience has demonstrated thatxfthis shifta-can' be 12000111:

When my gears are so uconnected, the speed=reduc1ng .series.:1 31I511and:l2426: re-

volve l idly and zpower .is transmitted :'from the -'driving ashaft f8 '1 through its reversing gear 112, the intermediate reversing pinion 32 and 'reversing g-gearl i3l, the countershaft 23, transmission gear .40; and final' ;gear .20'ii-to and revolves the :driven shaft 5:16.

Change from the reverse 1 to the 'f'for-ward drive at any intermediate 2 speed is laccom- .pli'shedby.anterionmoveinent of the counter- -shafti23, shiftingiitsvhub 3O fromytheareversing gear'- socket .33 into the soeketr27, .28

or .29 of one ofzthe' spee'd reduction series'124,

25 or .26. L'Change from :reverse to i'direct drive can be accomplished by manual I anterior shift of. the .countersha'ft w-ithoutvmanual manipulation-"of thelever47a1id sleeve '35,; and-in either of three :ways byamanipulaevera-and-sleeve. :By ll anteriorztraversevof gagement with; thevreversing gear socket E33 (Fig 1')-' through those ofathe speed: reducing 12 :series and into :the anterior chamber 52 (Fig.2) ,and while it is 'pas'sing'throughthe the pawl 49; of-uthe :carriage 44,. sor thatcthe completion of the: anterior shift .offtheacoun- .tershaft also shifts ii the 1 sleeve 35, .uncouples it and thed'riving shaft from'thetprimary he "driven' shaft from 1 the .Jfin'al tion of the counter .w'shaft. rand @subsequent .535

manipulation of. the 11 the ..firstzzmethod,-'z-'thei 3* the :countershafta shifts; its rh gbtso. f fromc..en-

- socketfa29 in "theranterior. reducin'gqgear .26, the-shoulderb51 wof the :counter'shaft engages plished surely and" easily. one of. the I other methods, ithe oountershaft is first manipulated to shift itshub 30 from. engage- .ment with the reversingygear"31 into, say,

the :adj acent chamber 52 and the lever 47. is thereupon manipulated .to shift the sleeve 35 uand uncouple z the driving. and .driven shafts from their respective gears iLIIduCOU ple them direct. By. othermethods the shift of the countershaft" hub 30 may locate. .itmin a chamber 52 between the gearsf24and 25, or-between the .gears25andj 26. These various possible locations of the countershafti hub 30 enablesa chauffeur to anticipate the exigencies of travel and, either "when drivdrive because then the primary and 'final gears are. uncoupled from the driving-rand driven shafts and allthe gears are a't'rest.

When the .countershaft fihub 30 v is inthe anterior chamber'52 '(Fig. 2) changefrom direct to reduced high-speed drive may be made by manipulating the lever 47 only because the awl 49 will then be in engagement with the s oulder 51 ,of the countershaft and will move it so as to locate its hub 30 in the socket 29 of the high speed gear 26 and couple said gear to the conntershaft by the same motion-of the lever 47 which causes the sleeve 35 to un couple the driving and drivenv shafts from one another and engage them respectively with the primary and final gears. Shifts from direct to mean or low speed or to reverse may be made by first shifting, as just described, to reduced high speed and subsequently manipulating the countershaft, but are most quickly made by first manipulating said shaft to bring its hub 30 into engagement with the proper gear and sub sequently manipulating the lever 47. Shifts from one to another intermediate speed are made by properly manipulating the countershaft solely.

It will. be further observed that all of the engaging gea'r members aregeonstantly in engagement and hence obviate the great disadvantage of throwing gear members into and out of mesh, while at high speed none of the gears rotate. The connection is eti'ected through the squared hub portions and not through the engagement and disengagement of any pair of gears.

It is obvious that other geometrically ar ranged or shaped holes in the gears and lugs on the shafts, may be used; all of which may he of polygonal form and still be within the scope of my invention. \Vhile throughout the drawings I have shown square bores and square connectors, I do not desire to be limited to such forms.

Having thus described my invention, I claim 1. A driving shaft, a driven shaft co-axial therewith, an axially mo 'able countershaft, a gearing comprising primary members on the driving shaft, final members on the driven shaft and intermediate members envelopiug the countershaft, clutching means operable by the reciprocation of the counter shaft adapted to'connect ,it with one or another intermediate gear, clutching means adapted, at onetime, to-engage the driving and drivenshafts and disengage them from the gear train, and at another time to disengage said shafts and engage the driving shaft with the primary gear and the driven shaft with the final gear, and engaging means adapted to engage and disengage the two clutching means with and from one another.

driving shaft, a driven shaft co-axial therewith, an axiallymovable countershaft, a gearing comprising primary members on the driven shaft, final members on the driven shaft and intermediate members enveloping the counter shaft, clutching means oper nected with said carriage and adapted, at

one time, to engage the driving and driven shafts and disengage them from the gear train, and at another time to disengage said shafts and engage the driving shaft with the primary gear and the driven shaft with the final gear, clutching means operable bymovement of the countershaft, adapted to engage said shaft with and disengage it from an intermediate gear of said train, and means to move said countershaft.

3. A gear case, a driving shaft, a driven shaft co-axial therewith, an axially movable countershaft, a gearing comprising a primary member loose on the driving shaftprovided with a reversing gear and a graduated series of gears, a final gear loose on the driven shaft and intermediate gears comprising a reversing pinion revolubly mounted on the case, a gear mounted in the case revoluble with the countershaft and engaging the final gear, and enveloping said shaft, a reversing gear and a graduated series of gears severally engaging the corresponding primary gears, each of said intermediate reversin and reducing gears having a countersha ft-engaging socket, an engaging memher on the countershaft adapted to engage the aforesaid sockets severally, a carriage enveloping the countershaft, means to reciprocate said carriage, a pawl on said carriage adapted to engage it and disengage it from the countershaft,clutching means connected with said carriage and adapted, at one time, to engage the driving and driven shafts and disengage themfrom the gear train, and at another time to disengage said shafts and engage the driving shaft with the primary gear and the driven shaft with the final gear, and means to reciprocate said countershaft.

4. A gear case, a driving shaft, a driven shaft co-axial therewith, an axially movable countershaft, a gearing comprising a primary member loose on the driving shaft and provided with a reversing gear and a graduated series of reducing gears, a final gear loose on the driven shaft and intermediate gears comprising a reversing pinion revolubly mounted on the case, a gear mounted in the case revoluble with the countershaft and engaging the final gear, and, enveloping said shaft, a reversing gear and a graduated series of reducing gears severally engaging the corresponding primary gears, each of said intermediate reversing and reducing gears having a countershaft-engaging socket, an engaging memher on the eountershaft adapted to engage the aforesaid sockets severally, the sockets another time to disengage said shafts and engage the driving shaft with the primary I gear and the driven shaft with the final ear, and means to reciprocate said counters aft.

5. A driving shaft, a driven shaft coa ial therewith, an axlal movable countershaft, a gearing comprising rimary gears loose on the driving shaft, a nal gear loose on the driven shaft, a reversing pinion elsewhere mounted and intermediate gears enveloping the countershaft, clutching means adapted, at one time, to engage the driving and driven shafts and disengage them from the gear train, and at another time to disengage said shafts and engage the driving shaft with the primary gears and the driven shaft with the final gear, clutching means, operable independently of the first named clutching means, adapted to engage the countershaft with one intermediate gear and to release said ear without engaging another gear, and automatically engaging means adapted to automatically connect the two clutching means, when the first. named clutching 'means is operated to disconnect the driving and driven shafts.

6. A driving shaft, a driven shaft co-axial therewith, an axially movablecountershaft, a gearing comprising a primary member loose on the driving shaft and provided with a reversing gear and a graduated series of changegears-a final gear loose on the driven shaft and intermediate gears comprising a reversing pinion, a gear engaging the final gear and revoluble with the countershaftand, enveloping said shaft, a reversing'gear and a graduated series of chan e gears seve'rally engaging the corresponding primary gears, clutching means adapted, at one time, to engage the driving and driven shafts and disengage them from the gear train, and at another time to disengage said shafts and engage the driving shaft and the primary gear and the driven shaft with the final gear, clutching means operable by a movement of, the countershaft and independently of the first named clutching means and adapted I to engage and pass out of engagement, independently and successively, with the revers-' ing (gear and the gears of the graduated series, and means to reciprocate the countershaft. 7. A driving shaft, a driven shaft coaxial therewith, an axially movable countershaft, a gearing comprising a primary member loose on the driving shaft and provided with a reversing gear and a graduated ser1es driven sha t and intermediate gears com prising a reversing pinion, a gear engaging thefinal gear and revoluble with the coun "tershaft and, enveloping said shaft, a revcrs- :ing gear and a graduated series of change gears severally engaging the-corresponding primary gears, clutching means. adapted, at one time, to engage the driving and drlven shafts and disengage them from the gear train, and at another time to disengage said shafts and engage the driving shaft and the grimary gear and the driven shaft witlrthe nal gear, clutching means operable by, a -movement of the countershaft and ind ependently of the first named clutching means and adapted to engage and ass out of engage-f ment, independently and successively, with the reversing gear and the gears 'of the graduated speed series, means to reciprocate the countershaft, and automatic connecting means adapted, when the first-named clutchin means is operated to disconnect the clutching means with the countershaft and shift it out of engagement with an intermediate gear.

8. A driving shaft, a driven shaft co-axial therewith, primary gears comprising a re versing gear and a graduated series of change speed gears, a final gear on the driven shaft, a reversing pinion elsewhere mounted, a countershaft, a transmission gear revoluble therewith, and

countershaft, a series of change speed gears speed gears, the outer gears of said series beare mounted on the countershaft, and floatouter gears of said series.

therewith, primary gears comprising a reversing gear and .a graduated series of change speed gears, a final gear on the driven shaft, a reversing pinion elsewhere revoluble therewith, and enveloping said countershaft, a series of c ange speed gears comprising a reversing gear and graduated speed gears, the outer gears of said series being provided with bearings whereby they are mounted on the countershaft, and also with hearing tubes adapted to float the inner on the outer gears of said series.

10. A driving shaft, a driven shaft co -axial therewith, a movable countershaft, a gear driven shaft, a reversing pinion elsewhere mounted and a series of change speed gears COIIIPI'lSlIlg a reversing gear and graduated enveloping said ing provided with bearings whereby they 9. A driving shaft, a driven shaft co-axial mounted, a countershaft, a transmission gear.

ref-change cars, a final. gear loose on the driving and driven shafts, to connect sa'd comprising a reversing gear and graduated ing means adapted to float the inner on ith'e tram comprising primary gears loose on the driving shaft, a final gear loose on the:

oaeae speed gears enveloping the countershaft, to engage said countershaft with and disen- 10 clutching means adapted, at one time, to engage it from any gear of said change-speed gage the driving and driven shafts direct series and to be moved to the position anteand disengage them from the gear train, and cedent to engagement with any gear of said at another time to disengage said shafts and change speed series. engage the driving shaft with the primary CHARLES J. PAULSON.

and the driven shaft with the final gear, and Witnesses 2 clutching means operable independently 41f; JOHN MORRIS,

the first named clutching means and adapted H. D. PENNEY.

Copies oi this patent may be obtained to: five cents each, by addressing the Gommimsioner'oil Eetenta.

1 Washington, D. 0." 

